Setting and characters Mega Man Star Force takes place in the fictional year of 220X, 200 years after the events of the
Mega Man Battle Network series, when emphasis on internet technology has lessened, and instead, the world has become networked through use of
EM Waves. Though cyber worlds and
NetNavis still exist in
Star Force, human dependency on them has greatly decreased, and people no longer have Navi companions, instead relying on Transers. Three large satellites orbiting the Earth—Pegasus, Leo, and Dragon—power the EM Wave World that exists around the Earth's atmosphere, keeping the world networked. While the EM Wave World is normally invisible to the human eye, a special piece of eyewear called the Visualizer (possessed by the series's main protagonist) allows a human to see this other world. However, like with the cyber worlds of
Battle Network, EM Wave Viruses inhabit the EM Wave World, causing problems in everyday life. and travel between both the real and EM Wave worlds.
Story Geo has been mourning the disappearance of his father Kelvin after the explosion of the space station
Peace three years ago, and as a result, he has not been attending school. A group of children from Geo's class constantly urge Geo to attend school, but he always refuses. One day, Geo comes home and finds Aaron Boreal, Kelvin's co-worker at the AMAKEN Space Agency, conversing with Geo's mother, Hope. Aaron gives Geo the Visualizer, a glasses-like device that allows humans to see the EM Wave World. Geo goes outside to sulk on an observation deck over the city when he puts the Visualizer on. Using it, he sees Omega-Xis, who recognizes Geo as Kelvin's son and quickly performs an Electromagnetic Wave Change with him, transforming into the
Star Force version of Mega Man. Omega-Xis is considered a traitor by the FM King because he has stolen the mysterious Andromeda Key, and he also claims to know about the events leading up to Kelvin's disappearance. Geo agrees to work with Omega-Xis to protect the key, and thus, Omega-Xis resides within Geo's Transer. He is aided in his fight against the FMs by the three satellites; eventually, they make it to the space station
Peace which had been seized by the FM King, during which Omega-Xis reveals to Geo that he knew Kelvin Stelar before coming to Earth, but converted him into a wave form so the astronaut could escape the king's wrath. They defeat Andromeda but spare the king, following his father's dream to establish peace with other life. The king tells Geo his name is Cepheus, but asks Geo how he could possibly trust one from another world, for he never has. Eventually, he is convinced that he and Geo are kindred spirits and must both set out to make their parts of the universe a better place. Geo is ready to return to Earth, but the station begins falling apart and he is cut off from the wave road he used to reach the station in the first place and he is forced to escape via a derelict escape pod. For days he and Omega-Xis (who revelated to be a AM-ain) drift through space, doomed to die on this spacecraft and be lost in the void forever but just as Geo is ready to give up hope, somehow, from the endless vastness of space, his father's spirit is finally able to reach him. Geo is confronted by his father in a dream where he tells Geo he must hold on to those he loves most and as long as he keeps believing in them, Kelvin shall always watch over him, no matter how far apart they are. At that moment, Geo's friends Luna, Bud, Zack, Sonia and even Pat have gathered at Geo's favorite spot to call him back home. The strength of their bonds causes all their Brother Bands to converge into a beam that connects with Geo's space pod and miraculously saves him. Geo simply watches the Earth draw closer as he is brought home during the game's credits, never to be the boy he used to be again. ==Development and release==